diff --git a/codewars/7kyu/quadratic-enumerator/koronya.js b/codewars/7kyu/quadratic-enumerator/koronya.js
new file mode 100644
index 000000000..ec5f93481
--- /dev/null
+++ b/codewars/7kyu/quadratic-enumerator/koronya.js
@@ -0,0 +1,26 @@
+// [JS][7kyu] Quadratic Enumerator
+// quadratic-enumerator
+// https://www.codewars.com/kata/5aee96e22c5061ee90000024/train/javascript
+
+function* quadraticGen(a, b, c, start = 0, step = 1) {
+  let n = start
+  while (true) {
+    yield [n, a * n * n + b * n + c]
+    n += step
+  }
+}
+
+// let a1 = quadraticGen(1, 0, 0)
+// let a2 = Array.from({ length: 7 }, (_) => a1.next().value)
+
+// let b1 = quadraticGen(1, 0, 0, 2)
+// let b2 = Array.from({ length: 7 }, (_) => b1.next().value)
+
+// let c1 = quadraticGen(1, 0, 0, 0, 2)
+// let c2 = Array.from({ length: 5 }, (_) => c1.next().value)
+
+// let d1 = quadraticGen(1, 0, 0, 0, -1)
+// let d2 = Array.from({ length: 7 }, (_) => d1.next().value)
+
+// let e1 = quadraticGen(1, 0, 0, 0, 0.5)
+// let e2 = Array.from({ length: 5 }, (_) => e1.next().value)